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Selected:Fault Tree AnalysisLean UX CanvasATAM (Architecture Tradeoff Analysis Method)8D Problem Solving
| Criterion |  Operations Fault Tree Analysis |  UX Design Lean UX Canvas |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | The Lean UX Canvas helps clarify user behavior, touchpoints, and concept decisions. It makes assumptions and desired outcomes visible and captures the result as a completed canvas, hypothesis list, and first experiment. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | High | Medium | High | High |
Timedifferent | 2-6 h | 2-3 h | Several meetings plus preparation and analysis; total effort depends on scope | 1-6 Wochen |
Participantsdifferent | 3-8 | 3-8 | Evaluation team, architects, and relevant stakeholders | 4-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Completed Lean UX Canvas, Hypothesis list, First experiment | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | RiskRoot causeSafety | CanvasHypothesisOutcomesDiscovery | ArchitectureQualityRiskTradeoffsStakeholders | QualityProblem solvingRoot cause |